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New Agreements (Details) (USD $)
In Millions, unless otherwise specified
1 Months Ended
Mar. 31, 2015
Apr. 30, 2015
Rochas brand [Member]    
New Agreements [Line Items]    
Cost of the acquisition $ 108us-gaap_BusinessCombinationConsiderationTransferred1
/ ipar_NewAgreementsAxis
= ipar_RochasBrandMember
 
Coach, Inc [Member] | Subsequent Event [Member]    
New Agreements [Line Items]    
License agreement term   11 years